Improvement in machines for pointing horseshoe-nails



2Sheets--Sheet1. A. H. CARY'L & N. A. LEE. Machines for Painting Horseshoe-Nails.

Patented Dec.15,1874.

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' 2 Sheets--Sheet 2. A. H. CARYL & N. A. LEE.

Machines for Pointing Horseshoe-Nails.

N0;I57,7I3, v Patented Dec.15,l874.

Ink/62250738.

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UNITED STATES PATENT OFFICE.

ALEXANDER H. GAME, OF FORGE VILLAGE, AND NOAH A. LEE, or wEs'r- FORD, MAssAoHUsErrs.

IMPROVEMENT IN MACHINES FOR POINTING HORSESHOE-NAILSE Specification forming part of Letters Patent No. 157,7 [3, dated December 15, 1874 application filed June 9, 1874.

To all whom it may concern.-

Beit known that we, ALEXANDER H. GARYL, of Forge Village, and NOAH A. LEE, of Westford, all in the county of Middlesex and State of Massachusetts, have invented an Improved Machine for Pointing Horseshoe-Nails; and we do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of our invention sufficient to enable those skilled in the art to practice it.

The invention relates to an organization of mechanism for pointing horseshoe-nails. In our invention we use a beveled-edged turntable wheel, in the edge of which wheel is a series of slots for holding the ends of the nails to be pointed, the point end of each nail being thrust into one of the slots and positioned by a suitable gage, and being held by a suitable clamp. After the nail is thus positioned and held, the turn-table is rotated so as to bring the clamped nail into line with a vertical post, in which post is hung a swinging arm, at the foot of which is a die, the forward swing movement of which die causes it to operate upon the positioned end of the nail, to form the finished point of the nail. Our invention consists in the organization of mechanism thus generally described, and in the details of such organization, to be hereafter specifically described.

The drawing represents an organization embodying the" invention.

Figure 1 is a side elevation thereof. Fig. 2 shows the mechanism in plan. Fig. 3 is a sectional plan, showing the mechanism for operating the turn-table. Fig. t is a bottom View of the turn-table. Fig. 5 shows the die. Fig. 6 is a View of the turn-table, &c., showing the side opposite to that shown in Fig. 1.

a denotes a bed-plate, having extending up from it a vertical pin, upon which is a tubular shaft, 11, that has mounted upon its top a horizontal turn-table or wheel, 0, having a beveled edge. The edge of said wheel is beveled or inclined, as seen at e, and in the inclined face is a series of radial grooves, f. g denotes a stop or gage at the end of an arm, h, extending from the pin upon which the turn-table rotates. The

end of each nail to be pointed is thrust up through this groove when the gage is over the groove, the end of the nail bringing up against the under surface of the gage, passing under a clamp-plate, 6. Each clamp-plate t is fixed to the top of a pin, is, extending up from the forward arm of a lever, Z, fulcrumed at m, and having a downwardly-extending arm, n. The arm n, to hold the clamp in position to gripe the nail, travels over and against the surface of a broken ring, 0, and the clamp is operated to release the nail by passing off of the broken ring 0. When the nail is positioned by the gage and held by the clamp, the next movement of the turn-table brings the nail into position in front of a vertical post, p, the turntable stopping when the nail reaches the post. In this post is hung an arm, q, said arm being jointed by a link, s, to a hand-lever, t, fulcrumed at at, and having jointed to its arm n, by a link, w, a horizontal slide-rack, m, that reciprocates on the plate a. The teeth of this rack mesh into the teeth of a pinion, y, having an arm, 2, to which is jointed a pawl, a that engages with notches b on the tubular shaft I). Said pawl is held to the surface of the tubular shaft by a suitable spring, and, when the hand-lever t is swung toward the post p, the pawl brings the clamped nail to be pointed into position before the post, the same movement of the lever carrying the die-arm' back into the post. The movement of the turn-table carries the body of the nail under a movable nipper-lever, c and between said lever and a stationary projection, d As the die-arm swings back, as described, another arm, e also swings back and operates the nipper-lever, so as to clamp the body of the nail or hold it down against the projection d As the handlever tis now swung in the opposite direction, the die swings forward, and its bottom face acts against the end of the nail projecting beyond the clamp-platet'to shape the point of the nail but in this shaping it neither cuts, trims, nor files, but, on the contrary, the die compresses, shapes, points, and hardens the point without taking away any of the stock of the nail. The peculiar rounding and widening shape of the die also makes a form of point of peculiar character and great strength, and one not subject to bend or turn up when the nail is driven into the horses hoof; it also confines and reduces the metal, rounding and tapering on one side or face. In this movement of the hand-lever, the rack, and pinion, and pawl are operated, but the pawl slips over the face of the tubular shaft without imparting movement thereto,

and, consequently, without moving the turntable, said table being prevented from accidental movement by the top of a vertical stoplever, which stands before or in the path of movementof a pin, f extending from the bottom of the turn-table. During the latter part of the pointing movement of the handlever, a pin, 9 extending from the rack, strikes the bottom arm of the lever, leaving the turn-table free to move again after the nail is pointed. The nail being pointed, the hand-lever is swung forward, and, as it begins to swing, the nipper-leve'r c is released by the movement of the arm 6 and the turn-table again moves to bring a new nail to position to be pointed. The griped and pointed nail moves forward with the wheel or turn-table until the arm n of the lever that griped it passes oil of the ring 0 at [L2, and the pointed nail is then released and drops from the machine. To throw the pawl out of action, a lever, '5 may be used, said lever entering a notch, 76 of a stationary plate, 1 to leave the pawl in action, and the inner arm of said lever pressing against an arm, m of the pawllever and throwing the pawl out of position, the outer arm of the lever entering a notch, M, to hold the pawl out of position. The die 0 is formed of steel, or with its acting-face of steel, and with a groove, p of the exact reverse shape of the point to be given to the nail, the form being such as to impart the requisite bevel and the requisite side shape to the nail at its point.

WVe claim- 1. In combination with a clamp for holding the nail, the smooth grooved die 0 operating, substantially as described, to compress and point the nail by a forward motion.

2. In combination with the clamping device 6 70 Z m n for holding the nail to be pointed, as described, the gage g for positioning the nail, substantially as described.

3. The turn-table or wheel 0, beveled as shown, and provided with the series of slots, and with the series of automatically griping and releasing clamps i, operating as described, to hold the nails to be pointed.

4. In combination with the edge-beveled turn-table c and the clamps t, the gage g h for positioning each nail in succession.

5. In combination with the turn-table and clamps, the levers Zn and broken ring 0 for operating the clamps, substantially as described.

6. The hand-lever 1?, link 8, and die-arm q, in combination with the turn-table and its grooves and clamps, substantially as described.

7. In combination with the turn-table and die, the nipper-lever 0 operating substantially as described.

8. In combination with the turn-table, the rack, pinion, and pawl, operating and operated substantially as and for the purpose described.

Executed this 3d day of June, A. D. 1874:.

A. H. OARYL. N. A. LEE. Witnesses:

M. W. FROTHINGHAM, S. B. KIDDER. 

